2 * Type definitions for ia32 node attributes.
3 * @author Christian Wuerdig
7 #ifndef _IA32_NODES_ATTR_H_
8 #define _IA32_NODES_ATTR_H_
10 #include "firm_config.h"
14 #include "firm_types.h"
15 #include "../bearch.h"
16 #include "../bemachine.h"
18 typedef enum { flavour_Div = 1, flavour_Mod, flavour_DivMod } ia32_op_flavour_t;
19 typedef enum { pn_EAX, pn_EDX } pn_ia32_Register;
36 ia32_am_None = 0, /**<< no addrmode support */
37 ia32_am_Dest = 1, /**<< addrmode for destination only */
38 ia32_am_Source = 2, /**<< addrmode for source only */
39 ia32_am_Full = 3 /**<< full addmode support */
62 ia32_am_IS = ia32_I | ia32_S,
63 ia32_am_BI = ia32_B | ia32_I,
64 ia32_am_OB = ia32_O | ia32_B,
65 ia32_am_OI = ia32_O | ia32_I,
66 ia32_am_OIS = ia32_O | ia32_I | ia32_S,
67 ia32_am_OBIS = ia32_O | ia32_B | ia32_I | ia32_S
70 typedef struct _ia32_register_req_t {
71 const arch_register_req_t req;
72 int same_pos; /**< in case of "should be same" we need to remember the pos to get the irn */
73 int different_pos; /**< in case of "should be different" we need to remember the pos to get the irn */
74 } ia32_register_req_t;
77 ia32_pn_Cmp_Unsigned = 0x100 /**< set this flag in a pnc to indicate an unsigned compare operation */
80 typedef struct _ia32_attr_t {
82 ia32_op_type_t tp:3; /**< ia32 node type */
83 ia32_immop_type_t imm_tp:2; /**< ia32 immop type */
85 ia32_am_type_t am_support:2;/**< indicates addrmode type supported by this node */
86 ia32_am_flavour_t am_flavour:4; /**< the concrete addrmode characteristics */
87 unsigned am_scale:2; /**< addrmode scale for index register */
89 unsigned offs_sign:1; /**< sign bit of the first offset */
90 unsigned am_sc_sign:1; /**< sign bit of the address mode symconst */
92 unsigned use_frame:1; /**< indicates whether the operation uses the frame pointer or not */
94 ia32_op_flavour_t op_flav:2;/**< flavour of an op (flavour_Div/Mod/DivMod) */
96 unsigned flags:4; /**< indicating if spillable, rematerializeable, stack modifying and/or ignore */
98 unsigned is_commutative:1; /**< indicates whether op is commutative or not */
100 unsigned emit_cl:1; /**< indicates whether we must emit cl instead of ecx (needed for shifts) */
102 unsigned got_lea:1; /**< indicates whether or not this node already consumed a LEA */
104 unsigned got_reload:1; /**< set to 1 if node cosumed a reload */
106 unsigned n_res:6; /**< number of results produced by this node */
109 int *out_flags; /**< flags for each produced value */
111 int am_offs; /**< offsets for AddrMode */
112 ident *am_sc; /**< SymConst for AddrMode */
115 tarval *tv; /**< tarval for immediate operations */
116 ident *sc; /**< the symconst ident */
119 ident *cnst; /**< points to the string representation of the constant value (either tv or sc) */
121 ir_mode *ls_mode; /**< the mode of the stored/loaded value, or the mode to convert to */
123 ir_entity *frame_ent; /**< the frame entity attached to this node */
125 long pn_code; /**< projnum "types" (e.g. indicate compare operators and argument numbers for switches) */
127 unsigned latency; /**< the latency of the instruction in clock cycles */
130 const char *orig_node; /**< holds the name of the original ir node for debugging purposes */
133 const be_execution_unit_t ***exec_units; /**< list of units this operation can be executed on */
135 const ia32_register_req_t **in_req; /**< register requirements for arguments */
136 const ia32_register_req_t **out_req; /**< register requirements for results */
138 const arch_register_t *x87[3]; /**< register slots for x87 register */
140 /* must be last, dynamic */
141 const arch_register_t *slots[1]; /**< register slots for assigned registers */
144 #endif /* _IA32_NODES_ATTR_H_ */